Conventional Heat Detector

All of the HD912 series detectors meet the requirements of UL521 and EN 54-5 for use in fire alarm signaling systems, which provide fast and reliable response for heat 57°C (135°F) or Rate-of-Rise detection, They are intended for use in 2-wire/4-wire Class A2 supervised zone circuits. The HD912 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.

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产品描述

Conventional Heat Detector

Product Features:

2 or 4 wire models
Advanced detection and discrimination algorithms
Easy installation and maintenance
Sleek low-profile housing design
Durable sensor head, no need for replacement
SMD circuit board design-satisfactory quality and reliability guaranteed
N/C (normal/close)-N/O (normal/open)selectable relay output
AR (Auto Reset) function for security systems (optional for 4 wire models) Sensor base option:
standard and Shottky Diode
Five-year limited warranty

The range includes:

HD912-2	2 wire heat alarm
HD912-2L	2 wire heat alarm with remote LED output
HD912-4	4 wire heat alarm (12/24VDC)
HD912-4B	4 wire heat alarm with buzzer (12/24VDC)
HD912-4AR	4 wire heat alarm with auto-reset function (12/24VDC)
HD912-4ARB	4 wire heat alarm with auto-reset function and buzzer (12/24VDC)

Product Data:

Response Temperature:	Fixed termperature: 57°C (135° F) Rate-of-Rise: CLASS 2 (EN54-5); or 8°C/Min (UL521)
Ceiling Spacing:	50 foot rating for heat sensor
Reset Voltage:	less than 1 volt
Alarm Indicator:	LED continuously emitting red light
Remote Output:	25 mA max., diode gate
Temperature Range:	-10°C to 50°C
Permissible Current:	80mA maximum
Humidity:	0 to 95% RH, no condensation or icing
Alarm Contact:	(for 4-wire) NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC
Dimensions:	100mm (dia) x 46mm (ht) with base
Weight:	120g/set with base